Spin cycle is off balance washing machine is

i dont believe it is the agitator per say. Assuming this problem has just started and doesnt have transportation bolts still attatched. Two conditions cause the imballance. 1)(if unit is a top loader) Check if all 4 shock absorber springs are well lubricated and not sticking. 2)A more involved problem which often happens, Underneath the washer, is the drive motor. on the motor, is a round pulley. this pulley needs to come off and strip further until you see a long spring. If it is not broken, clean it up using a solvent and a rag. reassemble and test. (if spring is defective, it will slip instead of grip on a spin cycle.